Home / 142,584.72-196,787.62-82,143.60

Finding the Fourth Proportional to 142,584.72, 196,787.62 and 82,143.60

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Solution

The fourth proportional to 142,584.72, 196,787.62 and 82,143.60 is: 113,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,584.72 : 196,787.62 = 82,143.60 : x
  2. Step 2: Convert to fraction form
    142,584.72/196,787.62 = 82,143.60/x
  3. Step 3: Cross multiply
    142,584.72x = 196,787.62 × 82,143.60
  4. Step 4: Simplify right side
    142,584.72x = 16,164,843,542.23
  5. Step 5: Solve for x
    x = 16,164,843,542.23/142,584.72
  6. Step 6: Final answer
    x = 113,370.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.